CN208498787U - A kind of propeller - Google Patents
A kind of propeller Download PDFInfo
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- CN208498787U CN208498787U CN201820676484.5U CN201820676484U CN208498787U CN 208498787 U CN208498787 U CN 208498787U CN 201820676484 U CN201820676484 U CN 201820676484U CN 208498787 U CN208498787 U CN 208498787U
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- blade
- propeller
- elastic component
- propeller according
- support
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Abstract
The utility model discloses a kind of propeller, including blade and elastic component, the elastic component is connect with the blade, is applied restraining force to the blade in blade expansion, is had the blade and rotate the trend packed up with propeller shank axis.The utility model has the beneficial effects that propeller described in the utility model, it is connect by setting elastic component with blade, restraining force is applied to the blade in blade expansion, there is blade, the trend packed up is rotated with propeller shank axis, thus when propeller being made not work, i.e., when the centrifugal force of propeller rotational disappears, blade by elastic component constraint and be stowed away, keep rise from and then not needing to design too long undercarriage with ground.
Description
Technical field
The utility model relates to air vehicle technique fields, it particularly relates to a kind of propeller.
Background technique
In the prior art, in aircraft takeoff or landing, since blade has certain length, tail pushes away propeller touching
Ground rubs, and there is a situation where as shown in Figure 1, on the other hand, when aircraft lands or starts, attitude of flight vehicle changes
Change will also result in the problem of tail pushes away propeller collision ground, and there is a situation where as shown in Figure 2.Currently, occurring in order to prevent above-mentioned
Two kinds of situations have to make tail push away propeller and take off, landing and when posture changes by the Landing Gear Design of aircraft enough to length
Certain distance is kept with ground, avoids the problem that tail pushes away propeller collision ground as far as possible.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Utility model content
For above-mentioned technical problem in the related technology, the utility model proposes a kind of propellers, can be when not in use
It packs up blade automatically, avoids colliding when aircraft takeoff or landing with ground.
To realize the above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of propeller, including blade and elastic component, the elastic component are connect with the blade, in blade expansion
Restraining force is applied to the blade, there is the blade, the trend packed up is rotated with propeller shank axis.
Preferably, the blade includes the first blade and the second blade being oppositely arranged.
Preferably, the spring structure includes double torsion spring, the both ends of the double torsion spring respectively with first paddle
Leaf and the second blade and lower surface fitting.
Preferably, further include support, connecting rod is interspersed on the support, the both ends of the connecting rod pass through rotational structure
It is connect respectively with the root of first blade and the second blade.
Preferably, the rotational structure includes shaft and the groove for being set to the propeller shank, and the groove is for institute
It states connecting rod to pass through, the shaft connects the groove and the blade, rotate the blade can along the shaft.
Preferably, the support is equipped with fixed link, and the double torsion spring is set in the fixed link.
Preferably, the support is equipped with holding tank, and the fixed link is fixedly connected with the both ends of the holding tank, described
Double torsion spring is located at the inside of the holding tank.
Preferably, the support includes vertical seat and horizontal base, and the connecting rod is interspersed on the vertical seat, the appearance
Slot of receiving is arranged on the vertical seat.
Preferably, several connecting holes are offered on the horizontal base
The utility model has the beneficial effects that propeller described in the utility model, is connect by setting elastic component with blade,
Restraining force is applied to the blade in blade expansion, there is blade, the trend packed up is rotated with propeller shank axis, thus
When propeller being made not work, that is, when the centrifugal force of propeller rotational disappears, blade by elastic component constraint and be stowed away, with ground
Face keeps rise from and then not needing to design too long undercarriage.
Propeller described in the utility model solves undercarriage in the prior art with cheap cost in simple structure
Design too long problem.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Tail pushes away the feelings that propeller touching ground rubs when Fig. 1 shows aircraft takeoff in the prior art or landing
Condition；
Fig. 2 shows the case where change of attitude of flight vehicle in the prior art causes tail to push away propeller collision ground；
Fig. 3 is the main view of propeller described in the utility model embodiment；
Fig. 4 is the side view of propeller described in the utility model embodiment；
Fig. 5 is the perspective view of propeller described in the utility model embodiment；
Fig. 6 is the decomposition chart of propeller described in the utility model embodiment；
Fig. 7 is the perspective view under propeller works state described in the utility model embodiment；
Fig. 8 is the main view under propeller works state described in the utility model embodiment；
Fig. 9 is the side view under propeller works state described in the utility model embodiment；
Figure 10 is the enlarged drawing of Fig. 5 encircled portion；
Figure 11 is the enlarged drawing of Fig. 3 encircled portion.
In figure: 1. undercarriages；2. tail pushes away propeller；3. ground；
10. propeller；20. blade；30. blade fetters structure；40. support；
21. the first blade；22. the second blade；
31. double torsion spring；311. first end；312. second end；
41. connecting rod；42. shaft；43. groove；44. fixed link；45. holding tank；46. screw；47. vertical seat；48. water
Flat seat；49. connecting hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figure 1, it is shown that in the prior art aircraft takeoff or landing when tail push away propeller touching ground rub
The case where wiping.If undercarriage 1 is designed to fall short of, tail pushes away propeller 2 and will rub with ground 3.
As shown in Figure 2, it is shown that the change of attitude of flight vehicle causes tail to push away the feelings that propeller collides ground in the prior art
Condition.If undercarriage 1 is designed to fall short of, tail pushes away propeller 2 and will collide with ground 3.
As shown in figure 3, being a kind of propeller 10 described in the embodiment of the present invention, including blade 20 and paddle elastic component 30, bullet
Property part 30 connect with blade 20, blade 20 be unfolded when to blade 20 apply restraining force, make blade 20 have with propeller shank
Axis rotates the trend packed up.As shown in figs. 7-9, under state of flight, the blade 20 of propeller 10 is opened up in the state of centrifugal force
It opens, and when needing to land and just to take off, propeller 10 is not subject to centrifugal forces then, only by from elastic component
The restraining force that 30 pairs of blades 20 apply, blade 20 become the shape being upwards collected through from the state for rotating the trend packed up upwards
State.The case where the above are vertical installations, certainly, when propeller 10 is transversely mounted, blade 20, which becomes rotating to horizontal direction, to be received
The state risen.
As a more specifical embodiment, as shown in Figure 4 and Figure 5, blade 20 includes the first paddle being oppositely arranged
Leaf 21 and the second blade 22.Elastic component 30 includes double torsion spring 31, the both ends of double torsion spring 31 respectively with the first blade 21 and the
The lower surface of two blades 22 is bonded.As shown in figs. 6 and 10, double torsion spring 31 include first end 311 and second end 312, first
End 311 is bonded with the lower surface of the first blade 21, and second end 312 is bonded with the lower surface of the second blade 22, when centrifugal force disappears
When, in the case where double torsion spring 31 restores the active force of deformation to centre, first end 311 pushes up the first blade 21, second end 312
The second blade 22 is pushed up, the first blade 21 and the second blade 22 are upwards collected through, under collapsed state, first end 311 and
Angle between two ends 312 is smaller.As shown in figure 9, in the presence of centrifugal force, double torsion spring 31 restore deformation active force can not gram
Taking centrifugal force makes the first blade 21 and the second blade 22 keep the state packed up, the angle between first end 311 and second end 312
It is larger.
Elastic component 30 can also be the elastic component that can be extended other than it can be double torsion spring.It, can by taking rubber band as an example
So that the both ends of rubber band are connected on the root of the first blade 21 and the second blade 22, and when blade 20 is packed up, rubber
Muscle keeps relaxed state, and when blade 20 is unfolded, rubber band is elongated, and generates elastic deformation, to make the first blade 21 and the
Two blades 22 have the trend packed up.
As a more specifical embodiment, as shown in fig. 6, further including support 40, connection is interspersed on support 40
The both ends of bar 41, connecting rod 41 are connect with the root of the first blade 21 and the second blade 22 respectively by rotational structure.Pass through company
Extension bar 41 realizes no matter when the first blade 21 and the second blade 22 can keep the layout being oppositely arranged.
Specifically, as shown in figure 11, rotational structure includes shaft 42 and the groove 43 for being set to 20 root of blade, groove 43
It is passed through for connecting rod 41,42 connecting groove 43 of shaft and blade 20 rotate blade 20 can along shaft 42.
As a more specifical embodiment, as shown in figure 11, support 40 is equipped with fixed link 44, double torsion spring 31
Spring ring part be set in fixed link 44.Fixed link 44 can make double torsion spring 31 more stably work.
As a more specifical embodiment, as shown in fig. 6, support 40 is equipped with holding tank 45, fixed link 44 with
The both ends of holding tank 45 are fixedly connected by screw 46, and double torsion spring 31 is located at the inside of holding tank 45.So far, blade 20 and paddle
Leaf constraint structure 30 has reasonably been incorporated on support 40, and flexible structure is compact, and succinct small and exquisite, stable connection is reliable.Spiral
Paddle 10 can be used as one, and individually completely the flight instruments of product and needs connect.
As a more specifical embodiment, as shown in Figure 10, support 40 includes vertical seat 47 and horizontal base 48, water
Flat seat 48 is circular laminated structure, and vertical seat 47 is laminated structure and keeps vertical with horizontal base 48, and connecting rod 41 is interspersed in
Parallel with horizontal base 48 on vertical seat 47, holding tank 45 is arranged on vertical seat 47, forms closed annular with horizontal base 48.
It is as shown in Figure 10 as a more specifical embodiment, several connecting holes 49 are offered on horizontal base 48, are used
It is connect in aircraft.
Propeller described in the utility model, acts not only as tail and pushes away propeller packing up automatically, can also be applied to portion
Divide tilting rotor, the folding of quadrotor drone propeller.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (9)
1. a kind of propeller, which is characterized in that including blade and elastic component, the elastic component is connect with the blade, described
Restraining force is applied to the blade when blade is unfolded, there is the blade, the trend packed up is rotated with propeller shank axis.
2. propeller according to claim 1, which is characterized in that the blade includes the first blade being oppositely arranged and
Two blades.
3. propeller according to claim 2, which is characterized in that the elastic component includes double torsion spring, double torsion bullets
The both ends of spring are bonded with first blade and the second blade and lower surface respectively.
4. propeller according to claim 3, which is characterized in that further include support, is interspersed with connecting rod on the support,
The both ends of the connecting rod are connect with the root of first blade and the second blade respectively by rotational structure.
5. propeller according to claim 4, which is characterized in that the rotational structure includes shaft and is set to the paddle
The groove of blade root, the groove pass through for the connecting rod, and the shaft connects the groove and the blade, make described
Blade can be rotated along the shaft.
6. propeller according to claim 4, which is characterized in that the support is equipped with fixed link, the double torsion spring
It is set in the fixed link.
7. propeller according to claim 6, which is characterized in that the support be equipped with holding tank, the fixed link with
The both ends of the holding tank are fixedly connected, and the double torsion spring is located at the inside of the holding tank.
8. propeller according to claim 7, which is characterized in that the support includes vertical seat and horizontal base, the company
Extension bar is interspersed on the vertical seat, and the holding tank is arranged on the vertical seat.
9. propeller according to claim 7, which is characterized in that offer several connecting holes on the horizontal base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820676484.5U CN208498787U (en) | 2018-05-08 | 2018-05-08 | A kind of propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820676484.5U CN208498787U (en) | 2018-05-08 | 2018-05-08 | A kind of propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208498787U true CN208498787U (en) | 2019-02-15 |
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ID=65299086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820676484.5U Active CN208498787U (en) | 2018-05-08 | 2018-05-08 | A kind of propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208498787U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994274A (en) * | 2020-08-20 | 2020-11-27 | 云南恒草生物科技有限公司 | Unmanned aerial vehicle puts in device with buffer function |
| CN112389637A (en) * | 2019-08-13 | 2021-02-23 | 顺丰科技有限公司 | Hang down device and aircraft |
| WO2021139650A1 (en) * | 2020-01-10 | 2021-07-15 | 苏州臻迪智能科技有限公司 | Power assembly, arm assembly, arm connector, and unmanned aerial vehicle |
| CN113386948A (en) * | 2021-05-06 | 2021-09-14 | 四川傲势科技有限公司 | Unmanned aerial vehicle folding paddle, thrust system and unmanned aerial vehicle |
-
2018
- 2018-05-08 CN CN201820676484.5U patent/CN208498787U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112389637A (en) * | 2019-08-13 | 2021-02-23 | 顺丰科技有限公司 | Hang down device and aircraft |
| CN112389637B (en) * | 2019-08-13 | 2022-04-05 | 丰翼科技(深圳)有限公司 | Hang down device and aircraft |
| WO2021139650A1 (en) * | 2020-01-10 | 2021-07-15 | 苏州臻迪智能科技有限公司 | Power assembly, arm assembly, arm connector, and unmanned aerial vehicle |
| CN111994274A (en) * | 2020-08-20 | 2020-11-27 | 云南恒草生物科技有限公司 | Unmanned aerial vehicle puts in device with buffer function |
| CN113386948A (en) * | 2021-05-06 | 2021-09-14 | 四川傲势科技有限公司 | Unmanned aerial vehicle folding paddle, thrust system and unmanned aerial vehicle |
| CN113386948B (en) * | 2021-05-06 | 2023-12-12 | 四川傲势科技有限公司 | Unmanned aerial vehicle folding paddle, thrust system and unmanned aerial vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210714 Address after: 518000 5th floor, block B, building 1, software industry base, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Fengyi Technology (Shenzhen) Co.,Ltd. Address before: 518000 Xuefu Road (south) and Baishi Road (east) intersection of Nanshan District, Shenzhen City, Guangdong Province, 6-13 floors, Block B, Shenzhen Software Industry Base Patentee before: SF TECHNOLOGY Co.,Ltd. |
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